Only 283 or 4 Super VR-4 Legnums produced. ClubVR4 has a full list of all the Super chassis numbers so it should be easy to see what number your one is out of the lot. That is restricted to members but Kitty on here probably has this info and may post it if it is not already available here.
Got it!
I am 126/283.
Still, that's a lot less than the "800" they claimed to have made.